Home / 1,857.56-2,786.88-1,531.40

Finding the Fourth Proportional to 1,857.56, 2,786.88 and 1,531.40

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Solution

The fourth proportional to 1,857.56, 2,786.88 and 1,531.40 is: 2,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.56 : 2,786.88 = 1,531.40 : x
  2. Step 2: Convert to fraction form
    1,857.56/2,786.88 = 1,531.40/x
  3. Step 3: Cross multiply
    1,857.56x = 2,786.88 × 1,531.40
  4. Step 4: Simplify right side
    1,857.56x = 4,267,828.03
  5. Step 5: Solve for x
    x = 4,267,828.03/1,857.56
  6. Step 6: Final answer
    x = 2,297.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.